TABLE 4.

Correlations between the three enumeration methods

Method and subpopulationCorrelation with qPCR resultsa
L. lactis subsp. cremorisL. lactis subsp. lactisLeuconostoc spp.
X-Gal-calcium citrate agar
    Acidifiers 0.852** −0.864**−0.641*
    L. lactis subsp. lactis bv. diacetilactis
    Leuconostoc spp.−0.734*0.682* 0.896***
FLOW-FISH
    L. lactis subsp. cremoris 0.884*** −0.884***−0.766**
    L. lactis subsp. lactis−0.836** 0.832** 0.766**
    Leuconostoc spp.−0.728*0.687* 0.870**
  • a Results (Pearson correlation coefficients of transformed percentages) for bacterial community analyses of 10 different PROBAT cultures based on the X-Gal-calcium citrate agar or FLOW-FISH method were compared to those based on qPCR. Correlations of equivalent subpopulations are shown in boldface. Only significant correlations are shown. *, P < 0.05; **, P < 0.01; ***, P < 0.001.